spandsp  0.0.6
floating_fudge.h
1 /*
2  * SpanDSP - a series of DSP components for telephony
3  *
4  * floating_fudge.h - A bunch of shims, to use double maths
5  * functions on platforms which lack the
6  * float versions with an 'f' at the end,
7  * and to deal with the vaguaries of lrint().
8  *
9  * Written by Steve Underwood <steveu@coppice.org>
10  *
11  * Copyright (C) 2008 Steve Underwood
12  *
13  * All rights reserved.
14  *
15  * This program is free software; you can redistribute it and/or modify
16  * it under the terms of the GNU Lesser General Public License version 2.1,
17  * as published by the Free Software Foundation.
18  *
19  * This program is distributed in the hope that it will be useful,
20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22  * GNU Lesser General Public License for more details.
23  *
24  * You should have received a copy of the GNU Lesser General Public
25  * License along with this program; if not, write to the Free Software
26  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27  */
28 
29 #if !defined(_FLOATING_FUDGE_H_)
30 #define _FLOATING_FUDGE_H_
31 
32 #if defined(__cplusplus)
33 extern "C"
34 {
35 #endif
36 
37 #if !defined(HAVE_SINF)
38 static __inline__ float sinf(float x)
39 {
40  return (float) sin((double) x);
41 }
42 #endif
43 
44 #if !defined(HAVE_COSF)
45 static __inline__ float cosf(float x)
46 {
47  return (float) cos((double) x);
48 }
49 #endif
50 
51 #if !defined(HAVE_TANF)
52 static __inline__ float tanf(float x)
53 {
54  return (float) tan((double) x);
55 }
56 #endif
57 
58 #if !defined(HAVE_ASINF)
59 static __inline__ float asinf(float x)
60 {
61  return (float) asin((double) x);
62 }
63 #endif
64 
65 #if !defined(HAVE_ACOSF)
66 static __inline__ float acosf(float x)
67 {
68  return (float) acos((double) x);
69 }
70 #endif
71 
72 #if !defined(HAVE_ATANF)
73 static __inline__ float atanf(float x)
74 {
75  return (float) atan((double) x);
76 }
77 
78 #endif
79 
80 #if !defined(HAVE_ATAN2F)
81 static __inline__ float atan2f(float y, float x)
82 {
83  return (float) atan2((double) y, (double) x);
84 }
85 
86 #endif
87 
88 #if !defined(HAVE_CEILF)
89 static __inline__ float ceilf(float x)
90 {
91  return (float) ceil((double) x);
92 }
93 #endif
94 
95 #if !defined(HAVE_FLOORF)
96 static __inline__ float floorf(float x)
97 {
98  return (float) floor((double) x);
99 }
100 
101 #endif
102 
103 #if !defined(HAVE_POWF)
104 static __inline__ float powf(float x, float y)
105 {
106  return (float) pow((double) x, (double) y);
107 }
108 #endif
109 
110 #if !defined(HAVE_EXPF)
111 static __inline__ float expf(float x)
112 {
113  return (float) expf((double) x);
114 }
115 #endif
116 
117 #if !defined(HAVE_LOGF)
118 static __inline__ float logf(float x)
119 {
120  return (float) logf((double) x);
121 }
122 #endif
123 
124 #if !defined(HAVE_LOG10F)
125 static __inline__ float log10f(float x)
126 {
127  return (float) log10((double) x);
128 }
129 #endif
130 
131 #if defined(__cplusplus)
132 }
133 #endif
134 
135 #endif
136 
137 /*- End of file ------------------------------------------------------------*/